The Hellenistic-Roman theatre was built with an inclination of 50 degrees in a hollow on a natural slope and has not yet been excavated. Its origin dates back to the 2nd century AD. Parts of the rows of seats seem to have slipped into the orchestra. The diazoma could be reached from the outside through a vault. The parodoi were made of travertine stone, while marble blocks were used in the construction of the stage house. The original stage house measuring 7.3 x 40 m has been destroyed except for its foundations.

Although the foundation of the city of Tripoli dates back to the Hellenistic period, archaeological finds show that the area was inhabited as early as 4000 BC. It was conquered or settled by Hittites, Phrygians, Greeks, Romans, Seljuks and Mongols.
Located at the crossroads of the ancient regions of Phrygia, Caria and Lydia, the city was initially founded on Lydian territory under the name of Apollonia. The name of the city changed over time to Antoninopolis, Neapolis. Since people from all three regions settled in the city, it was renamed Tripoli in the 1st century BC.

This name remained until the city was abandoned in the 7th century AD. The town was partially destroyed in 494 AD. With this event began the gradual depopulation of the city, which culminated in the Sassanid raids in the sixth and seventh centuries. The inhabitants withdrew to Direbol, only 8 km north of Tripoli. Located on a ridge, this place was better defended.